Analisis Tegangan Pada Sistem Perpipaan Jalur X-Mass Tree Menuju Pipeline Variasi Spring Dan Unspring Hanger

Abstract

Natural gas is a vital non-renewable resource for fuel, industry, and as a heat source. To meet domestic demand and the Gas Sales Agreement, the new gas compression project, Suban 25, in Sumatra, with a capacity of 855 MMSCFD, required a pipeline system analysis to ensure safety and prevent failure. This line is connected to the existing pipeline of the old well, Suban 8, which leads directly to the Suban Gas Plant inlet header. To ensure the safety of the piping system, a technical analysis was conducted referring to ASME B31.3, ASME B31.8, ASME B16, ASME BPVC Sec VIII, and MSS SP-58 standards, focusing on the use of a spring hanger that was designed temporarily typical to the previous project (Suban 22). The maximum result of stress that occurs is 14537.58 psi for sustained loads, 14537.58 psi for occasional loads, and 17095 psi for thermal loads. For the flange check results as an anticipation of flange leakage, the highest value of voltage is 245763.98 Psi, which is then validated by the ASME Sec VIII method and declared safe. For the results of the smallest natural frequency value, a value of 1.113 Hz was obtained, at the spring hanger placement, so it was declared passed and acceptable. These results indicate that the piping system design by Typical is the best with the use of 2 spring hangers in different spools.